How to Convert Uric Acid mg/dL to µmol/L
Serum uric acid is reported in mg/dL in the US and in µmol/L across most of the world. The conversion factor is 59.48, from uric acid's molecular weight of 168.11 g/mol.
Uric acid µmol/L = uric acid mg/dL × 59.48 Uric acid mg/dL = uric acid µmol/L ÷ 59.48 Some labs report mmol/L instead; there, mg/dL × 0.0595 = mmol/L (1,000 times smaller than µmol/L).
Uric Acid mg/dL to µmol/L Chart
| mg/dL | µmol/L | Clinical context |
|---|---|---|
| 3.0 mg/dL | 178 µmol/L | Normal |
| 6.0 mg/dL | 357 µmol/L | Gout target ceiling |
| 6.8 mg/dL | 404 µmol/L | Urate saturation point |
| 7.0 mg/dL | 416 µmol/L | Hyperuricemia threshold |
| 9.0 mg/dL | 535 µmol/L | High |
| 10.0 mg/dL | 595 µmol/L | Very high |
µmol/L to mg/dL Reverse Chart
| µmol/L | mg/dL |
|---|---|
| 200 µmol/L | 3.4 mg/dL |
| 360 µmol/L | 6.1 mg/dL |
| 420 µmol/L | 7.1 mg/dL |
| 500 µmol/L | 8.4 mg/dL |
Uric Acid Reference Ranges
| Group | mg/dL | µmol/L |
|---|---|---|
| Men | 3.4–7.0 mg/dL | 200–420 µmol/L |
| Women | 2.4–6.0 mg/dL | 140–360 µmol/L |
| Gout treatment target | Below 6.0 mg/dL | Below 360 µmol/L |
The Saturation Point and Gout
The number that matters most is 6.8 mg/dL (about 404 µmol/L) — the point at which monosodium urate stops dissolving and can crystallize in joints and tissues. Above roughly 7.0 mg/dL (416 µmol/L) is called hyperuricemia and raises the risk of gout and uric-acid kidney stones, although many people with high levels never develop symptoms. On urate-lowering therapy, a common target is below 6.0 mg/dL (360 µmol/L).
Worked Example
Suppose your report shows 500 µmol/L and you want mg/dL:
500 ÷ 59.48 = 8.4 mg/dL 8.4 mg/dL is well above the saturation point. Reversing, a gout target of 6.0 mg/dL equals about 357 µmol/L.
Frequently Asked Questions
How do you convert uric acid mg/dL to µmol/L?
Multiply mg/dL by 59.48. For example, 6.0 mg/dL is about 357 µmol/L.
What is a normal uric acid level?
About 3.4–7.0 mg/dL (men) and 2.4–6.0 mg/dL (women).
What level triggers gout?
Urate crystallizes above ~6.8 mg/dL (404 µmol/L); above 7.0 mg/dL is hyperuricemia.
What is the gout treatment target?
Commonly below 6.0 mg/dL (360 µmol/L).
References
- UnitsLab — Uric acid unit conversion (mg/dL ↔ µmol/L).
- American College of Rheumatology gout guidelines (serum urate target < 6.0 mg/dL); uric acid factor 59.48 from MW 168.11 g/mol.
Conclusion
Converting uric acid between mg/dL and µmol/L is a ×59.48. The value to anchor on is the 6.8 mg/dL (404 µmol/L) saturation point and the 6.0 mg/dL (360 µmol/L) treatment target — interpret your result against those with your clinician.